Mai Shinozaki is a character from the manga and anime series Hantsu x Trash. She is a student at Kyūto High School and a member of the school's water polo club, where she interacts with the main cast including Yōhei Hamaji and Chisato Hagiwara.

Regarding her personality and motivations, Shinozaki is notably driven by her romantic feelings for her upperclassman, Chisato Hagiwara. Her affection for Hagiwara is significant and is described as being perverted in its intensity. Initially, this attachment leads her to harbor a strong dislike for the protagonist, Yōhei Hamaji. However, her feelings evolve as the story progresses. Upon realizing that Chisato Hagiwara has developed romantic feelings for Hamaji, Shinozaki shifts her stance. Her loyalty and affection for Hagiwara compel her to put aside her own initial distaste, and she begins to support Hagiwara's romantic pursuit of Hamaji. This action highlights a key aspect of her role: a supporting character whose actions are largely defined by her relationships with others, particularly in the context of the series' love dynamics.

In terms of her role in the story, Shinozaki is a member of the water polo club, but the available information focuses more on her contribution to the interpersonal drama rather than her athletic abilities in the sport. Key relationships include her close, affection-driven bond with Chisato Hagiwara and her dynamic with Yōhei Hamaji, which transitions from animosity to a reluctant alliance in the name of love. No information is available regarding her specific background, notable abilities in water polo, or significant character development outside of this emotional arc.